Improvement in paper machinery



nUNITED STATES .arnNr einen.

HENRYAGHAPMAN, OF CATAWISSA, PENNSYLVANIA.

IMPROVEMENT BN PAPER MACHINERY.

Specification forming part of Letters Patent No. 51,293, dated December 5, 1865.

' To all 'whom t may concern:

Be it knownv that I, HENRY CHAPMAN, of' Catawissa,in the county of Columbia and State of Pennsylvania, have invented a new and use ful Improvement in Paper Machinery; and I do hereby declare that `the following is a full, clear, and exact description thereof, which will enable others skilled in the art to make and use the same, reference being had to the accompanying drawings, forming part oi' this specification.

The object of this invention is to prevent the adherence ofthe paper sheet, as it passes through and between the wet-press rollers,7 socalled,of paper-making machines, to the upperroller ofthe same; and it consists in combinv ing with the said rollers a trough open along its side inwcontact with the ro1ler,'in which trough sal-soda or other alkaline solution or solutions are placed, that, as the roller revolves, lubricates the same, and thus prevents the adhesion-thereto ot' the wet sheet of paper as it passes through the machine, the edges of the trough in contact with the roller being packed B, the lower pressroller being represented in Fig. 2 in red lines. Between these rollers the wet sheetfpaper is passed, and in order to prevent its adherence to the upper one, A, which, as before stated, is the object ot" this invention, I arrange alongand upon one side ofthe same, for its whole length, a trough, C, open at its side D in contact with the roller, and sus tained at euch end in supports F F, projecting" froin each of the uprights B B, before referred to. ln this trough U sal-soda or other alkaline solution or solutions are placed, as represented by blue lines in Fig. 2, which solution, as the roller revolves, lubricates the same; and thus prevents the adherence of the wet sheet of par per thereto as it is fed to and between the two rollers, any suitable material for packing being used upon the edges of the trough in contact with the roller to prevent the escape ot' its liquid between their joint. The trough can be, by any suitable means, such as wedges, set up and against the roller with any desired pressure.

Having thus described my inventiomlf claim as new and desire to secure by Letters Patent- 1. The trough C, arranged as and for the purpose described.

2. Thenscot' sal-sodaor other alkaline solution or solutions for 'the purpose specified.

HENRY CHAPMAN. Witnesses:

U. W. MCKELVX, JAMES MATEER. 

